Lyophilized hydrocolloio foam
US4292972A · kind A · utility
209Cited by
32References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1980 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Jul 9, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lyophilized foam sponge product having medically useful hemostatic and adhesive properties formed from the hydrocolloids, gelatin, pectin, and sodium carboxymethylcellulose and having a density of from about 0.01 to about 0.10 grams/cc. The gelatin is present at from about 20% to about 80% by weight of the final product and the pectin and sodium carboxymethylcellulose are each present at from about 10% to about 50% by weight of the final product. The product is prepared by forming an aqueous colloidal dispersion of hydrocolloids, aerating or foaming, freezing, and lyophilizing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.